Hello all,

We currently have a relatively small (~250 users, 2TB) AFS cell that I am 
planning on retiring soon. I'd like to get our data out of AFS-space, but this 
is proving problematic because of performance issues. Our setup is one AFS 
server VM with iSCSI-attached /vicepa. For single large-file transfers with 
encryption off, I can get around 30MB/s read/write, but it seems like metadata 
operations are very slow, so copying our data (mostly home directories) 
directly from AFS with cp/rsync is taking a prohibitively long time. I see 
similar slowness with vos dump. We do take regular backups with vos backupsys 
and backup dump that take about 36 hours for full backups.

Does anyone have any recommendations on problem areas to try and tune to get 
better performance or advice on a better way copy our data out of AFS?

Thank you!

Dan Mezhiborsky
Cooper Union microLab

Daniel Mezhiborsky | BE Electrical Engineering '23
The Cooper Union

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